1907 Singer 15, trying to figure out what is seized. Siggestions?
 

Purchased this machine a few months ago as a novice treadle person. None of the works are moving when the hand wheel knob is in operating position. Spins freely otherwise. It appears at least one part is seized, but haven't been able to remove parts to check because screws are not budging for me.
I oiled.it up, nothing. I have watched a couple of videos on how to trace the issue(s). Used power blast in areas that might be seized. I just did it again and will let it sit a day or two.
I.have a strong husband, but I fear he may force a part accidentally. Thus hoping to avoid long strings of sailor profanities.
Any ideas? Suggestions? Thanks

I understand heat from a hair drier will help. My experience with machines involved just cleaning and oiling, but I was able to get to the parts.
bkay

Welcome to the QuiltingBoard!

There are 5 plates you need to remove: 1. the round disc on the back top of the pillar, 2. the nose/face plate, 3. the needle plate, 4 the bobbin slide plate, 5. the stitch length cover plate.

When I have had stuck screws I use an appropriately sized screwdriver and a hammer, giving the stuck screw a tap, hard or soft as necessary, to loosen the screw. Always make sure you use the correctly sized screwdriver to remove screws, it's really easy for the the screwdriver to slip and bung up the slot on the screw (says the voice of experience!). Once all the plates are off I would use sewing machine oil everywhere metal rubs against metal and let it sit at least a day, test it, then reapply as necessary. I would want all the plates off before I tried heat.

Welcome. I agree with bkay and Joe. However, a 1906 15 does not have a stitch length cover plate - do not attempt to remove the stitch length knob. Fortunately, I have never done it, but from what I have read it is a bear to get back on.

Oil, wiggle, oil, attempt again. Blaster, wiggle, tap.

We like pictures - see my post at https://www.quiltingboard.com/8489147-post9.html for how to post pictures.

Janey - Neat people never make the exciting discoveries I do.

I have been surprised at the muber of thimes that stuck machine issues end up being reloved in teh needlebar or bobbin area.

Especially lint in the bobbin area.